.area-info {
    margin-left: 5px;
    padding-left: 5px;
    font-size: 16px;
    padding-bottom: 10px;
    border-bottom: #ecf0f1 1px solid;
}

.info-line {
    margin: 10px 0 55px 0;
}

.course-info span {
    line-height: 37px;
}

.tj-header {
    margin: 30px 0 10px;
}

.describe {
    font-size: 15px;
    color: #bdc3c7;
}

/* login */
.m-header {
    padding: 10px 16px 2px;
}

.login_form {
    margin-top: 150px;
}

.form-info {
    font-size: 18px;
    color: #2c3e50;
}

.switch-info {
    font-size: 14px;
    color: #2c3e50;
}

.btn {
    padding: 10px 20px;
    border-radius: 2px;
}

/* chanle */

.collection-line {
    /*box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);*/
    padding: 5px 0 25px;
    margin: 20px 0;
    background: #fff;
    border-bottom: #ecf0f1 1px solid;
}

.collection-line-info {
    font-size: 14px;
}

.collection-line-info .title {
    margin-bottom: 4px;
}

.collection-line-info .title a {
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-decoration: none;
    line-height: 20px;
    color: #212529;
}

.collection-line-info .title a:hover {
    color: #17a2b8;
}

.collection-line-info div {
    height: 30px;
}

.collection-line-info .attribute-text {
    font-weight: 400;
    color: #394043;
    letter-spacing: 0.4px;
    opacity: 0.8;
}

.collection-line-info .info-text {
    font-weight: 500;
    color: #394043;
    letter-spacing: 0.2px;
}

/* more */
.info-more {
    text-align: center;
}

.info-more a {
    font-weight: 400;
    color: #17a2b8;
    font-size: 16px;
    text-decoration: none;
}

.info-more i {
    padding: 65px 30px 65px 50px;
    position: relative;
}

.info-more i:hover,
.info-more i:focus {
    color: #e74c3c;
    /* opacity: 0; */
    animation: fadeIn 0.5s infinite linear alternate-reverse;
}

@keyframes fadeIn {

    0% {
        .collection-line {
            opacity: 0;
        }
    }

    100% {
        .collection-line {
            opacity: 0;
        }
    }

}

/* registe login*/
.register-login-line {
    margin: 0;
}

/* page */
.my-page-line {
    padding: 5px 0 2px;
    margin: 10px 0 1px;
    background: #fff;
}

/*hr*/
hr {
    margin: 2px;
}

